:: Re: [DNG] Wifi dropping ramdomly
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Szerző: Hendrik Boom
Dátum:  
Címzett: dng
Tárgy: Re: [DNG] Wifi dropping ramdomly
On Tue, Aug 16, 2022 at 06:26:20AM -0500, Jim Murphy via Dng wrote:
> Hi,
>
> My wifi connection drops randomly. It can sometimes run for days.
> Other times it may drop within hours of a reboot. There seems to be
> no pattern to when.


This is likely not your problem, but I've found that wifi shuts down on one of the older and slower local wifi frequencies whenever my microwave oven is in use.

-- hendrik

> Initially rebooting seemed to be the only way to
> get the network back. Under xfce4 disabling the wifi and/or network,
> then re-enabling them had no effect. After many google searches
> I finally found at:
>
> https://askubuntu.com/questions/26054/how-to-restart-wifi-interface-without-rebooting-it-drops-connection
>
> I now have the alias(zsh):
>
> alias reload_network_module='sudo modprobe -r iwldvm && sudo modprobe
> iwldvm'
>
> to re-enable the wifi. So far this has restored the network connection
> without having to reboot. Strange as it may seem, the wifi connection
> has stopped dropping as frequently since reloading the iwldvm module
> this way.?? FWIW
>
> /etc/os-release:
> PRETTY_NAME="Devuan GNU/Linux 4 (chimaera)"
> NAME="Devuan GNU/Linux"
> VERSION_ID="4"
> VERSION="4 (chimaera)"
> VERSION_CODENAME="chimaera"
> ID=devuan
> ID_LIKE=debian
> HOME_URL="https://www.devuan.org/"
> SUPPORT_URL="https://devuan.org/os/community"
> BUG_REPORT_URL="https://bugs.devuan.org/"
>
> /etc/debian_version:
> 11.1
>
> Computer: ThinkPad X230
>
> *-pci:1
>      description: PCI bridge
>      product: 7 Series/C210 Series Chipset Family PCI Express Root Port 2
>      vendor: Intel Corporation
>      physical id: 1c.1
>      bus info: pci@0000:00:1c.1
>      version: c4
>      width: 32 bits
>      clock: 33MHz
>      capabilities: pci normal_decode bus_master cap_list
>      configuration: driver=pcieport
>      resources: irq:17 memory:f1c00000-f1cfffff
>    *-network
>         description: Wireless interface
>         product: Centrino Advanced-N 6205 [Taylor Peak]
>         vendor: Intel Corporation
>         physical id: 0
>         bus info: pci@0000:03:00.0
>         logical name: wlan0
>         version: 34
>         serial:  "redacted"
>         width: 64 bits
>         clock: 33MHz
>         capabilities: bus_master cap_list ethernet physical wireless
>         configuration: broadcast=yes driver=iwlwifi
> driverversion=5.10.0-10-amd64 firmware=18.168.6.1 6000g2a-6.ucode
> ip=192.168.0.102 latency=0 link=yes multicast=yes wireless=IEEE 802.11
>         resources: irq:29 memory:f1c00000-f1c01fff

>
> % ls /lib/modules/**/iwldvm.ko
> /lib/modules/5.10.0-10-amd64/kernel/drivers/net/wireless/intel/iwlwifi/dvm/iwldvm.ko
> /lib/modules/5.10.0-9-amd64/kernel/drivers/net/wireless/intel/iwlwifi/dvm/iwldvm.ko
>
> Not sure if this is a hardware or software or firmware issue. No other
> devices/systems are having this issue on the same wifi network.
>
> If anyone has any advice it would be appreciated. Since I have a
> workaround it is just an annoyance.
>
> Regards,
>
> Jim Murphy


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